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An Excel-lent card trick. (English)
Math. Teach. (Reston) 104, No. 7, 526-530 (2011).
Summary: Card tricks based on mathematical principles can be a great way to get students interested in exploring some important mathematical ideas. In this article, the author discusses a simple spreadsheet implementation that shows students why the card trick works and allows them to explore several variations. As an added bonus, students are introduced to composite functions, the floor function, and iteration, and they learn how to use formulas and the INT function in Microsoft Excel. The depth of the mathematical explanation can be varied according to students’ background. (Contains 5 figures.) (ERIC)
Classification: U63 U64 R23 R24
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